[quote=“blatz”]
yeah, the funny thing is exactly what narvin is saying is why I feel its effective - much easier to control pH in the 6-14SRM range (for most people’s water) while not having to add oodles of chalk to the mash. I’m still experimenting with it to see which way i like the best, but my results with the late or steeping method have been very favorable.
for a black IPA i’d say late addition or steeping is practically a must.[/quote]
I haven’t made a black IPA but I’d definitely try the sparge steeping (or cold steeping) method specifically to tone down the roasty flavor. For a stout, I like the roast character I get right now 
And I agree that it doesn’t make any sense to add chalk to your mash and then still need to acidify your sparge water if you can just add dark grains later. I was just surprised to find out that I didn’t need any chalk in my mash, even with the roasted grains in there. Kai’s spreadsheet predicted a pH of 5.35, and Martin’s 5.2, yet I hit 5.5. AJ Delange was the one who said to try it without chalk, and I’m glad I did since the empirical evidence backed him up.
Did you used to add more chalk when you put all the grains in the mash? I wonder if that was making things worse?